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標題: 甲醇重組器供熱系統之實驗探討
Experimental Study of Heat Supply System for Methanol Steam Reformers
作者: 何益豪
Ho, Yei-How
關鍵字: catalyzed combustion reactor;觸媒燃燒;reformer heat supplier;catalyst support;theoretical air;Kaolinite;重組器供熱系統;觸媒載體;理論空氣量;高嶺土
出版社: 機械工程學系所
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In this study, a catalyzed combustion reactor that is to serve as the heat supplier in a methanol-steam reformer unit is designed and its performance is experimentally tested. The designed reactor is fabricated by assembling two pieces of stainless steel plates with machined cavities serving as the combustion chamber. Platinum supported by the carbon fiber paper, stainless mesh or Kaolinite is used as the catalyst layer and is sandwiched between the two steel plates. The methanol and air are used as the fuel and oxidant, respectively. The performance of the reactor is tested under various fuel/air ratios, fuel/air flow rates, catalyst weights and thermal conditions.
For the adiabatic combustion case, it was found that the temperature of product increases with the increase of catalyst weight. Based on the magnitude of the product temperature, it was found that best reactor performance can be resulted when Kaolinite was used as the catalyst support. It was also found that better reactor can be achieved as the air flow rate is approximately equal to the theoretical air.
For the un-insulated combustion case, the measured reactor wall temperature is increased as the reactor wall thickness is reduced. However, the temperature reached is not high enough to maintain the required reforming temperature which is around 260℃. Further improved design with increased catalyst weight, high reactant residence time is still needed.
其他識別: U0005-2108200917025400
Appears in Collections:機械工程學系所

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